Add with pictures - sums up to 5

Add with pictures - sums up to 10

Add with pictures - sums up to 20

Subtract with pictures - numbers up to 5

Subtract with pictures - numbers up to 10

Subtract with pictures - numbers up to 20

Comparing differences up to 30

Put numbers up to 30 in ascending order

Put numbers up to 30 in descending order

Complete the ascending sequence with numbers up to 30

Complete the descending sequence with numbers up to 30

Write the adjacent numbers up to 30

Problem. How many numbers are between two given numbers smaller than 30

Find two numbers whose sum is included between the following numbers

Find two numbers whose difference is included between the following numbers

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